28003984

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{42689}}^1$

素因数の和:42738

約数の個数: 20

約数和(自身を含む): 55582380

約数和(自身を除く): 27578396

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 42689, 85378, 170756, 341512, 683024, 1750249, 3500498, 7000996, 14001992, 28003984]

約数ペア:

[(1, 28003984), (2, 14001992), (4, 7000996), (8, 3500498), (16, 1750249), (41, 683024), (82, 341512), (164, 170756), (328, 85378), (656, 42689)]